Ore-separator



(No Model.) 6 Sheets-Sheet 1.

' E. G. GOOD & 'Jg-THORNE.

ORE SEPA'RATOR.

N0.'455,531. Patented July 7, 1891.

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E. G. GOOD 8?: J. THORNE.

ORE SEPARATOR.

No. 455,531. v Patented July 7,1391.

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(No Model.) 6 Sheets Sheet 4. E. G. GOOD & J. THORNE.

ORE SEPARATOR.

Patented July 7,1891.

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E.- G. GOOD & J. THORNE.

ORE SEPARATOR.

No.455,531 Pmtentd July 7,1891.

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I I ORB SEPARATOE. V

Patented July 7,1891.

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' UNITED STATES ED\VARD G. GGOD AND JAMES THORNE, OF PORTLAND, OREGON,ASSIGNORS PATENT OFFICE.

OF ONE-THIRD TO EZRA RUST, OF SAGINAXV, MICHIGAN.

ORE-SEPARATOR.

SPECIFICATION formingpart of Letters Patent No. 455,531, dated July 7,1891.. Application filed March 31, 1891. Serial No. 387.094. (No model.)

To all whom it may concern.-

Be it known that we, EDWARD G. GOOD and JAMES THORNE, citizens of theUnited States, residing at Portland, in the county of Multnomah andState of Oregon, have in-- rection indicated by the arrow; Fig. 3, avertical central section (at right angles to Fig. 2) on line 3, Fig. 2Fig. 4, a broken-away vertical section on line at, Fig. 2; Fig. 5, abrokenaway section on line 5, Fig. 4; Fig. 6, an end elevation, theexpansion chamber being broken away; 'Figs.7 and 8,broken-awaysec-.tional details of construction; Fig. 9, a broken away vertical sectionof the expansion-cham- 'ber surmountingthe machine proper; Fig. 10,

a broken-away section of the expansion-chamber on line 10, Fig. 5),embodying a modification; Fig. 11, a broken-away part elevation and partsection showing structural details, and Fig. 12 a broken-away sectionaldetail and plan of the shaking-screen.

The object of the invention is to subject mineral substances containingnative metals or metallic compounds to adisintegratingoperation of sucha character as to pulverize or reduce to dust the non-metal1icconstituents or gangue only, leaving the native metal or metalliccompounds in their natural form practically the same as when found in afree state, where the process of disintegration of the gangue has beeneffected by atmospheric action. This result is accomplished in themanner and by the means hereinafter set forth.

Referring to the drawings, A represents the base structure or casinginclosing the disintegrating-chamber. This base is constructed of metalplates or parts bolted together, as

illustrated, and is surmounted by a super-' structure forming the ex pansion-chamber A.

l'OWS.

The companion disk throwing-wheels B B are mounted on the shafts B Bwhich are provided with suitable journal-bearings secured to the basestructure. These throwu ing-wheels are provided with a number ofprojections or arms a, to the shoulder ends of which are rigidly boltedthe plates a, as shown in Figs. 2 and 3. These wheels are set in therelative position shown in Fig. 3 and revolve in opposite directions, asindicatedby the ar- The space E between the wheels is where the twoconflicting bodies or streams of ore and air come together in thebreakingup process. The feed-hoppers C C are located above thethrowing-wheels and are secured to the respective sides of the casing,as shown in Figs. 1, 2, and Inside of and below the mouth of thefeed-hoppers are located the feed-Wheels 0 0 Fig. 2, mounted on theshafts a a which are provided with suitable journal-bearings. Thefeedwheels comprise a number of radial blades a forming pockets abetween each pair of blades. These blades extend clear across thefeed-opening; the pockets receiving the larger part of the ore or othersubstance run in. The throatpassage a between the feed-wheels and thefront side of the hoppers prevents clogging or interference with themovement of the feedwheels and also provides for the admission of therequired amount of air, the air not being admitted to thedisintegrating-chamber at. any other point.

The shafts a a on which the feed-wheels are mounted, extend across andproject a little beyond the sides of the casing, as shown in Fig. 1. Thecompanion gear-Wheels a. a are rigidly mounted on such projecting ends,as shown in Fig. 6. The shaft 1) extends across one end of the machine,Fig. 6, and has the pinions b 19 mounted on the respective ends thereofand which engage with the gearwheels (6 a The counter-shaft 12 Fig. 6,is 9 journaled in the brackets if and has the crank-wheel 11 mounted onone end. To this crank-wheel is secured the lowerend of theconnecting-rod b, the upper end being adjustably connected to thehorizontal rod 1) by I00 the hand-screw b The inner end of the rod b issecured in a socket 12 having an integral collar part b Fig. 7, mountedon the shaft 1). The ratchet-wheel d is also mounted on the shaft 5,Figs. 1, 3, and 6, and has the feed-dog d engaging therewith. One end ofthis dog is pivoted in the clip 62 on the socketpiece I)". Thecounter-shaft carries the band-wheel d and receives motion from themotive power by means of the belt d. By this arrangement an intermittentrot-ary motion is transmitted to the feed-wheels. As the rod 1) israised and lowered through the medium of the crank-wheel andconnectingrod,the feed-dog engages the ratchet-wheel tooth by tooth andimparts a corresponding movement to the feed-wheels and feeds the ore ingradually. The movement of the feedwheels may be varied by changing theposition of the connecting-rod on the rocking rod W.

The shoes (1 are bolted to the inside of the casing below thefeed-wheels, Fig. 2, and form a shelf to check too free a flow, aportion of the ore being dropped in with each movement of thefeed-wheel.

The partitions D D divide the disintegratingchamber into threecompartments, the disk throwing-wheels being located in the middlecompartment 1) (whose upper portion serves as an uptake for thepulverized material) and the compartments D D ateach side, as shown inFig. 2. The dividing-boards d (l are of an inverted-V shape, asindicated by the dotted lines in Fig. 3, and are located in thecompartments D D at each side, as shown in Fig. 2.

As shown in Fig. 1, the lower part of the.

feed-hopper has two branches d (i with the inclined dividing-surface (1"leading to each side. This feature is for the purpose of dividing thebody of ore and have it pass into the disintegrating-chamber at twodifferent points, as indicated by thedotted lines at e c, Fig. 3, whichshows the relative position of the openings communicating with thebifurcated feed-hopper. By this arrangement the ore, Where it strikesthe surface of the inclined dividing-boards (1 d is distributed equallyto the throwing-wheels in the disintegrating-chamber.

7 It must be understood that the ore drops down into the bottom of thecompartments D D, which are formed by the drums e e inclosing the mainshaft and which open into the middle chamber D the full size of thecircle, as shown at e Fig. 3, a part of one of the disk wheels beingbroken away to show such opening, the ore being thus discharged into thedisintegrating ohamber below the wheel-shafts. The inclined shelf 6 Fig.8, in the drums forms a slide for the ore to reach the required point.Thus it will be observed that the ore does not drop onto the top of thethrowing-wheels, as is the case in pulverizingmachines in which theordinary fan-wheels are used.

The peculiar features attending the construction and operation of thedisk throwing- .chamber proper.

Wheels will now be described. The backs of the arms a are rounded orcurved in the direction in which the wheels revolve, the ends of thearms terminating in a straight shoulder or face, to which the plates aare bolted. It will be observed that the plates or blades (1 have theirworking faces or surfaces of impact in, planes bisecting the wheeloutside of its axis. Now, the ore entering below the wheel-shaft, theangle at which the plates are set brings the face of the same, when intheir lowermost position, square against and throws the ore in astraight line toward the companion wheel. The wheels will be made torevolve at a high speed, so that the two continuous streams of orethrown by the companion wheels will come together in the central spacewith great force, the impact breakin g the ore and releasing the metalfrom its inolosing substances and rendering the after process ofseparation much easier and cleaner than if the ore had been subjected tothe usual grinding or crushing process.

The cut-offs E E are bolted to the casing above the disk wheels, Figs. 2and 3, and extend across the width of the space between the partitionsinclosing the disintegratinge is a strengthening-rib formed in thecenter of the angle cut-offs. The lower part of the cut-offs is curvedto correspond to the curvature of the pathway of the wheels, the plateson the arms of which run very closely thereto for the purpose ofpreventing any particles of ore from being carried around or leavingsufficient space between the two at this point for the passage of avolume of air, the current being broken at this point with reference tothe rotary movement of the wheels. The position of the face plates onthe arms of the disk wheels brings the inner ends in line with the toesof the cutoffs while the outer ends are yet some distance back, whichgives the plates a chance to free or clear themselves before they havewholly passed the point of cut-off.

The throwing-wheels are set at one side of the center with reference tothe surrounding casing, so thatthe space e between the periphery of thewheels gradually an d uniformly enlarges from the point of cut-off,forming what might be termed a spiral duct, so that the volume of airwill not be contracted,but, on the contrary, expanded, so as to sweepclean and prevent the accumulation of matter at any point in thedisintegrating-chamber. The expanding duct will also prevent clogging,should particles of the ore by any chance pass the cut-oifsand enter thepassage beyond.

At the junction of the inclosing casing with the expansion-chamber islocated the stationary cylindrical body F, which may be either tubularor solid, tubular being preferred, as shown, on account of lightness.This body presents a rounded or spherical surface to the matter carriedupwardly by the air from the disintegrating-chamber after the impact andserves to check too rapid a flow and divides the ore matter into twovolumes and carries it up through the narrow passages f f (see Fig. 2)on the respective sides of the cylinder F. It will be noted that thepassages or openings ff are between the cylinder F and the inside upperends of the partitions D D.

The expansion-chamber A, Fig. 9, gradually enlarges or widens clear thetop being closed by in the opposite direction to the upper end,

screen G, (see also Fig. 12,) which may have the required motiontransmitted by any suitable mechanism, no means for this purpose beingshown.

In operation the ore substance, broken up by impact in the space betweenthe throwingwheels, is carried upwardly by the current of air anddivided into two volumes by contact with the spherical surface of thecylinder or body F, and passing into the expansionchamber the volumeexpands with the increasing area, the lifting-power of the air growingproportionately less, so that such particles of ore as lose theirspecific gravity drop out of the ascending column and descend along thesloping sides of the expansionchamber down into the compartments D D andreturn to the disintegrating-chamber, and are again subjected to thebreaking-up process, and so on continuously until all the matter hasbeen reduced to the proper fineness. Such particles of the oresubstances as reach the dead-air space above the hopper drop into thesame and 'pass to the screening-surface G, where the finer particlespass through the meshes and out through the opening g, Fig. 11. Theparticles that are too large to go through the meshes are spouted intothe compartments I) D, as at g, Figs. 11 and 12, and returned to andagain subjected to the action of the throwing-wheels, The dust escapesfrom the expansion chamher through the pipe-extension G and may be conducted into the receiving or concentrating chambers or allowed to minglewith the atmosphere, as circumstances may determine. The final processof separating the metal from the refuse will be completed by othermeans.

Fig. 10 represents a modificationwith reference to the hopper F in theexpansionchamber. In this modification two spouts g the roof F slantingwith reference to the 1nc1ined sides of the expansion chamber.

9 are used, and the matter received into the hopper is spouted backdirectlyinto the compartments D D", leading to thedisintegrating-chamber, instead of being run onto a vi-' bratingscreeningsurface. This arrangement is more especially intended to beused in the reduction of mineral-paint ores'when all the matter is to bereduced to dust.

Figs. a and 5 illustrate features of construction relative to aconvenient insertion and removal of the disk-wheel shafts. Thetriangular cornerpiece his a separate part of thecasing and has thediagonal bar h rivited to the outer edge. This bar covers the line ofseparation and is secured to the meeting edges of the casing by thebolts 712. By

removing these bolts the OOlIlBFPlGOB maybe taken out. The pulleys 72 hare mounted on the shafts of the throwing-wheels, which have a beltedconnection with the motive power.

K represents the different parts of a belt tightener; but as nofclaim ismade herein thereto a detailed description is omitted.

Having thus described our invention, What we claim as new, and desire tosecure by Letters Patent, is-

1. In an ore-separator, the combination,with a disintegrating-chainberhaving an uptake, of companion throwing-Wheels havingtheir shaftstransverse to the chamber and mech anism for revolving both of saidthrowingwheels toward each other and upwardly to ward the uptake,substantially as described.

' 2. In an ore-separator, the combination,with companionthrowing-wheels, of a disintegrating-chamber having a common outtake,said throwing-wheels having their shafts transverse to the chamber, andmechanism for revolving said wheels toward each other and toward theouttake on the side opposite the outtake, substantiallyas described.

3. In an ore-separator, the combination,with companion throwing-wheels,of a disintegrating-chamber having a common outtake, saidthrowing-wheels having their shafts transverse to the chamber, mechanismfor revolving said wheels toward each other and toward the outtake onthe side opposite the outtake, and feeding devices discharging on saidopposite side in front of the wheel-blades, substantially as described.

4. Apparatus for the disintegration of mineral substances comprisingthrowing-wheels separated by an intervening free space, said wheelsbeing provided with blades whose working-faces are in planes bisectingthe wheel outside of its axis, and mechanism for driving said wheels inopposite directions and upwardly with respect to the intervening freespace, substantially as described.

5-. In an ore-separator, the combination,withadisintegrating-chamber,ofcompanionthrowing-wheels, each having bladeswhose working-surfaces are in planes bisecting the wheel outside of itsaxis, and feed shelves or inclines discharging below said axes,substantially as described.

6. In an ore -separator, the combination, with a disintegrating-chamber,of companion throwingavheels set eccentrically with reference to theinclosing casing, said throwingwheels being provided with blades whoseworking-faces are in planes bisecting the wheel outside of its axis,substantially as described.

'7. In an ore-separator, the combination, with adisintegrating-chamberhaving an uptake for the exit of the pulverizedmaterial, of companion throwing-wheels located below said uptake and atopposite sides thereof, said throwing-wheels being provided with bladeswhose working-faces are in planes bisecting the wheel outside of itsaxis, and cutoffs located close to the path of movement of the bladesand above the wheels, substantially as described.

8. In an ore-separator, the combination, With thedisintegrating-chamber, of the companion throwing-wheels and thecut-offs, said Wheels being set eccentrically with reference to theinclosing casing, whereby the space between the periphery of the sameand the inclosing casing gradually enlarges from the point of cut-off,substantially as set forth.

9. In an ore -separator, the combination, with the disintegratingchamber divided into three compartments, of the throwing-wheels locatedin the middle compartment or disintegrating-chamber proper, thedividing-boards placed in the side compartments, and the inclinedshelves in the lower drum ends of the side compartments, said inclinedshelves eX- tending below the shafts of the throwingwheels, whereby theore is distributed to the companion wheels alike at a point below theiraxial shafts, substantially as set forth.

10. In an ore-separator, the combination, with the inclosing casing, ofthe feed-hoppers branching at their lower ends and secured to oppositesides of the casin and communicating with openings therethrough, thefeedwheels provided with a number of pockets and set in the throat ofthe hoppers, the shoes bolted to the inside of the hoppers below and onthe opposite side from the feedwheels, and the means, substantially asdescribed, for imparting an intermittent rotary motion to saidfeed-wheels, substantially as set forth.

11. In an ore-separator, the combination, with the expansion-chamber, ofa hopper suspended centrally therein and a vibrating screen located in achamber at one side of the eXpa-nsion-chamber, a spout leading from saidhopper to said screen, whereby the finer matter is separated from thecoarser and the latter returned to the disintegrating-chamber,.

forth. EDWARD G. GOOD. JAMES THORNE.

substantially as set \Nitnesses:

L. M. FREEMAN, L. B. COUPLAND.

